Toothbrush replacement head



FIG. 1 is a front, top, and right side perspective view of a toothbrush replacement head showing my new design;

FIG. 2 is a rear, bottom, and left side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is an enlarged view of portion 9 shown in FIG. 2 ; and,

FIG. 10 is a front, top and right side perspective view of the toothbrush replacement head shown with additional environmental structure depicting a toothbrush head bristle cover.

The dash-dash broken lines in the drawings depict portions of the toothbrush replacement head or environmental subject matter that form no part of the claimed design. The dot-dash broken lines represent boundaries of the enlarged portion that form no part of the claimed design. 

CLAIM The ornamental design for a toothbrush replacement head, as shown and described. 